Piston-ring compressor



March 20, 1928.

S. G. LING PISTON RING COMPRESSOR Filed June 22, 1927 Patented Mar. 26, 1928.

unrr er STEPHEN G. LING, 0F CLEVELAND, OHIO.

PISTON-BIN G COMPRESSOR.

Application filed June 22, 1927. Serial No. 200,657.

The present invention relates to an im-tially spaced pointsythis band is formed with outwardly pressed portions 7 forming proved adjustable piston ring compressor of the type employed for holding piston rings upon a piston head during the insertion of the piston head in a cylinder, the

clamp being so constructed as to permit it to be mounted upon the piston head in a manner to retain the ring within the groove and yet so-fitted as. to move downwardly on the piston head as the rings are forced one by one into the cylinder.

principal aim is to generally improve upon tools of this class by providing one of comparative simplicity and durability which is characterized by the presence of a number of features found in a multiplicity of different -marketed devices, having been so I combined and related as to provide a compact and convenient arrangement insuring practicabilityand efficiency in operation.

A particular featurev of construction is based upon the presence of 'novel means for contracting the ends of the compressor, the means embodying a pair of special brackets and a clamping and retaining bolt capable of being disconnected from the brackets, and

thus adapting the device to be used at the bottom of the cylinder.

The invention is also advantageous in that it embodies an expansible and contractible annular band, formed with circumferentially spaced outstanding hooked lugs for cooperation with a bodily adjustable strap carrying one of the said brackets.

Other structural details as well as the novel arrangement thereof will become more readily apparent from the following description and drawings.

In the drawings Figure 1 is a top plan view of the complete compressor, showing the parts ready for operation.

Fig. 2 is a front elevational view showing the band contracting and retaining means more particularly.

Fig. 3 is a perspective view on an enlarged scale of the main band.

Fig. 4 is a perspective view of the bodily adjustable carrying strap.

Fig. 5 is a perspective view of a complemental bracket.

In carrying out the invention, it will be noticed that I have employed a relatively wide band 6 which possesses inherent resiliency to hold it in shape as represented in Fig. 3. At the top edge and at circumferenin Fig. 5.

stop shoulders.

In action, these are supposed to engage the bottom of the cylinder to prevent this band from being forced into the cylinder,.'as the piston is slipped up. .Struck out from the central portion from the band at predetermined points, and spaced :eircumferentially from each other are tongues 8 which. can be more definitely defined as hooked lugs.

Also, formed on the right hand end of this band is a relatively narrow extension 9 which is bent against the outside of the band and fastened thereto as at 10. This portion is formed with a vertically elongated slot 11 and it is spaced sufficiently from the i band to accommodate the bracket 12 shown Incidentally, this bracket comprises a plateportion l3 having spaced parallel outstanding tongues 14 and provided between these tongues is aright angularly bent portion '15 which is bifurcated, the furcations being represented by the reference characters 16. This portion 15 extends through the slot 11 and is intended to accommodate the head of a retaining bolt 17. The complemental bracket is designated generally by the reference character 18 and this comprises, as shown in Fig. 4, a plate portion 19 having a laterally directed part 20 formed with a screw threaded hole to accommodate the screw threaded end of'the bolt. The bracket 18 cooperates with a bodily adjustable strap 21. The strap 21 is of a resilient nature and is considerably smaller than the band 6.

This is provided at longitudinally spaced points with square openings 22 adapted to be selectively. engaged with the aforesaid hooked lugs 8. Moreover, one end portion 23 of this band will stand upon itself and fastenas shown in Fig. 4 to form a pocket for accommodating and retaining the brack- V et 18 in operative position.

Particular attention is invited to the fact that the square holes 22 in the straps 21 are slightly further apart than the lugs 8 on the band 6. The purpose of this is to permit a single one of these holes to be engaged with a single one of the lugs. This distributes the stress exerted by the bolt 17' in a desirable manner, and relieves friction.

In a device on the market with which I am familiar, a similar strap and band are necting feature ust described'isbelieved, to

. be advantageous over this.

In practice, it is obviousthat theend pontions of the split band 6 are disposed in overlap-ping relation. as shown in, Fig. 1', whereupon the strap 20. is plaeed upon the exterior of the band and the desined' opening'22 is engaged with: the desiredlug 8. Inasmuch asgt'his strap carries the bracket 18 as well: as' the bolt 17,, it renders these three; parts bodily adjustable; Howeverby engaging the head of the-boltfwit-h; the; furcations: 16on: the bracket 12, a finer adjustment is permitted:

Also when it is: desiredto disengage the device tromthefpistonhea'd, it is; only necessary; toplace; a suitable instrument underneathgthe: bolt 1;?- and to'forcethe head-in between thefiureations 16 Thisfaeilitates removal of the device especially-because of thefact thathitisiused most of the time from beneatli' thecylinder,at the bottom oat-the cylinder.

Unquestionably, persons familiar-With toolsof this class will be able'to obtaina. clear understandingof theinvention after reading the description in conjunction; with the drawings. For these reasons, a more lengthy. description is; thought unnecessary.

Having thus described my invention, .what I claim as new 1s:

1. In a piston ring compressing tool, a split band; a bracket carried by one end of the band,.l ugs provided on said band, a resilientst'rap provided with openings engage able withsaidlugs,v by one end of said'strap, and a bolt cooperable with said brackets for contracting the arably conneetingthe strap. to. the, exterior of; the opposite end portions of the band, saidstrap" being bent upon itself at one :end to provide a similar bracket r ecep taele,- and a: second bracket inisaid last,-namedreceptaele, said. second bracket being provided with screw threaded portion, and 'a bolt having; a-screw threaded endlooated in said screw threaded portion, andlhaving. its head arranged 1 between the .furcations of "the firstnamed; bracket.

In'testimony whereof I affixi H1. signature.

' STEPHEN. LING;

a second bracket carried bracket receptacle a bracket 

